Finding the Fourth Proportional to 3,188,825,951.12, 4,399,749,913.92 and 1,868,017,919.12
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Solution
The fourth proportional to 3,188,825,951.12, 4,399,749,913.92 and 1,868,017,919.12 is: 2,577,378,572.81
Step by Step Solution
- Step 1: Write the proportion equation
3,188,825,951.12 : 4,399,749,913.92 = 1,868,017,919.12 : x - Step 2: Convert to fraction form
3,188,825,951.12/4,399,749,913.92 = 1,868,017,919.12/x - Step 3: Cross multiply
3,188,825,951.12x = 4,399,749,913.92 × 1,868,017,919.12 - Step 4: Simplify right side
3,188,825,951.12x = 8,218,811,678,849,236,992 - Step 5: Solve for x
x = 8,218,811,678,849,236,992/3,188,825,951.12 - Step 6: Final answer
x = 2,577,378,572.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.